title: Analysis for free amino acids in pre-breakfast urine samples.
mesh_terms: D000592:Amino Acid Metabolism, Inborn Errors / Q000652:urine; D000596:Amino Acids / Q000652:urine*; D005215:Fasting; D006801:Humans; D008239:Lysine / Q000652:urine
chemical_list: D000596:Amino Acids; D008239:Lysine